BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 198 49.6%
2 United States 124 31.1%
3 Germany 59 14.8%
4 Hong Kong 3 0.8%
5 Singapore 3 0.8%
6 Taiwan 2 0.5%
7 United Kingdom 2 0.5%
8 New Zealand 2 0.5%
9 Canada 2 0.5%
10 Brazil 1 0.3%
11 Finland 1 0.3%
12 Romania 1 0.3%
13 Slovenia 1 0.3%